she claims self-defense. joey jackson on the case with me today. joey, welcome. >> thank you, brooke. >> listen, prosecutors, they want the death penalty for arias. now this previous ex-boyfriend coming forward saying she asked to borrow gas cans a day before the killing. gas cans? >> well, here's what they're trying to establish. first of all, the defense started their case and they started yesterday. today was their second day. and what they're trying to show through this witness is two things, really. one, that she was a normal person, that she had a loving relationship, that she wasn't a stalker, that she wasn't this crazed person, that the prosecution is pointing her out to be. the second thing they were trying to establish through this witness, brooke, is that she changed when she met the victim here, travis alexander. however, there is no perfect witness and that same witness had to admit that she, jodi arias, wanted to borrow some gas cans. so why? the prosecution will say to you that it was premeditation because she planned on taking a lon